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WO2012062225A2 - Procédé, station de base et système de coordination de ressources de radiomessagerie dans un réseau hétérogène - Google Patents

Procédé, station de base et système de coordination de ressources de radiomessagerie dans un réseau hétérogène Download PDF

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Publication number
WO2012062225A2
WO2012062225A2 PCT/CN2012/070179 CN2012070179W WO2012062225A2 WO 2012062225 A2 WO2012062225 A2 WO 2012062225A2 CN 2012070179 W CN2012070179 W CN 2012070179W WO 2012062225 A2 WO2012062225 A2 WO 2012062225A2
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WO
WIPO (PCT)
Prior art keywords
base station
paging
subframe
frame
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/070179
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English (en)
Chinese (zh)
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WO2012062225A3 (fr
Inventor
白伟
余政
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP12719918.0A priority Critical patent/EP2632217A2/fr
Priority to RU2013126523/08A priority patent/RU2556444C2/ru
Publication of WO2012062225A2 publication Critical patent/WO2012062225A2/fr
Publication of WO2012062225A3 publication Critical patent/WO2012062225A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a paging resource coordination method, a base station, and a system in a heterogeneous network.
  • a macro base station and a low power base station can be simultaneously deployed in the same network cell.
  • This type of network is called a Heterogeneous Network (HN).
  • the low power base station may include, but is not limited to, a micro base station, a pico base station, and a relay station.
  • the low-power base station can be used to cover the hotspot area, indoor, blind spot area or cell edge of the cell, and can improve the average cell throughput, cell edge throughput, and the like.
  • the macro base station and the low power base station are usually configured with the same spectrum resources, which causes mutual interference between the macro base station and the low power base station.
  • the macro base station (interfering base station) generates paging interference for the user equipment (UE) served by the low power base station (target base station); likewise, the low power base station (interfering base station) also applies to the macro base station.
  • the serving UE generates paging interference.
  • a paging resource coordination method and a base station in a heterogeneous network are provided, which can avoid paging interference to a UE in a connected state in a heterogeneous network, and reduce resource waste of the interfering cell.
  • An aspect of the present invention provides a paging resource coordination method in a heterogeneous network, including: a first base station determining a user terminal in a connected state; the first base station calculating a subframe number of a subframe used to send paging information, and the The frame number of the paging frame to which the subframe belongs, the paging information is used to page the user terminal in the connected state; the first base station sends the calculated subframe number and the paging frame to the second base station. And forming the approximate null subframe, or causing the second base station to stop transmitting the information in the subframe corresponding to the subframe number in the paging frame corresponding to the frame number.
  • the base station includes: a determining unit, configured to determine a user terminal in a connected state; and a calculating unit, configured to calculate, for sending, searching The subframe number of the subframe of the call information and the frame number of the paging frame to which the subframe belongs, the paging information is used to page the user terminal determined by the determining unit and in the connected state; and the sending unit is configured to Transmitting, by the second base station, the subframe number calculated by the calculating unit and the frame of the paging frame into an approximate null subframe, or stopping the second base station to stop in the subframe number corresponding to the paging frame corresponding to the frame number Send information in the sub-frame.
  • a further aspect of the present invention provides a coordination system for a paging resource in a heterogeneous network, including the foregoing base station as a first base station, and a second base station, configured to
  • the first base station after determining the user terminal in the connected state, calculates a subframe number of a subframe required for paging the user terminals, and a frame number of the paging frame to which the subframe belongs, and Transmitting the calculated subframe number and the frame number of the paging frame to the second base station, so that the second base station may configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be approximately an empty subframe. Or stopping the paging interference of the user terminal in the connected state in the first base station at the upper station.
  • the foregoing technical solution provided by the embodiment of the present invention can eliminate the paging interference of the second base station to the connected user terminal in the first base station, and prevent the paging information of the user terminal in the connected state in the first base station from being interfered by the second base station. .
  • the technical solution is to coordinate the paging resources of the user terminals in the connected state, and not to coordinate the paging resources of the idle state user terminals that are usually less interfered by the paging, all the connections and idle states are avoided.
  • the user terminals all waste resources caused by paging resource coordination.
  • FIG. 1 is a schematic diagram of a paging interference between a macro base station and a low power base station in the prior art
  • FIG. 2 is a schematic flowchart of a paging resource coordination method in a heterogeneous network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a scene of paging interference between a macro base station and a pico base station according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a scenario of paging interference between another macro base station and a pico base station according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a paging resource coordination system in a heterogeneous network according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart diagram of a method for eliminating paging interference in a heterogeneous network according to an embodiment of the present invention. Wherein, the method may include the following steps.
  • the first base station determines the UE in the connected state.
  • the first base station may be a macro base station, or may be a low-power base station such as a micro base station, a pico base station, and a relay station, which is not limited in the embodiment of the present invention.
  • the UEs within its coverage are in an idle state or a connected state.
  • the main work of the UE in the idle state is to monitor the broadcast information, the control information, the paging information, and the like sent by the first base station, and the main work of the UE in the connected state is to exchange data information, service information, and the like with the first base station. Therefore, for the first base station, by monitoring the working state of the UE, it can be determined that the UE is currently in an idle state or in a connected state.
  • the first base station calculates a subframe number of the subframe used for sending the paging information, and a frame number of the paging frame to which the subframe belongs, where the paging information is used to page the UE in the connected state.
  • paging is implemented by a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH).
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • P-RNTI Paging-Radio Network Temporary Identifier
  • the call information is transmitted on one or more of the subframes 0, 1, 5, 6 of each radio frame.
  • FDD Frequency Division Duplexing
  • paging information is in each radio frame. Transmission on one or more of the subframes 0, 4, 5, 9.
  • a base station transmits paging information through a subframe and a paging frame to which the subframe belongs, for example: For a Time Division Duplexing (TDD) system, paging information is in each radio frame. For transmission in one or more subframes of subframes 0, 1, 5, 6, for a Frequency Division Duplexing (FDD) system, paging information is in subframes 0, 4, 5 of each radio frame, Transmission on one or more subframes in 9.
  • the paging is implemented by a physical downlink control channel (PDCCH) and a physical downlink sharing channel (PDSCH).
  • PDCCH physical downlink control channel
  • PDSCH physical downlink sharing channel
  • the Paging-Radio Network Temporary Identifier (P-RNTI) is used for the BER on the PDCCH, and the UE monitors the PDCCH using the P-RNTI. In this way, the subsequent UE can use the P-RNTI to descramble the monitored PDCCH, and after reading the PDCCH scheduling correctly, the PDSCH of the PDCCH scheduling indication is obtained, and the related data (including the UE's equivalent identifier UE_ID) is obtained on the PDSCH. And the paging channel (Paging Channel, PCH) is transmitted to the medium access control layer to implement paging of the UE by the base station.
  • P-RNTI Paging-Radio Network Temporary Identifier
  • the first base station may calculate a paging opportunity i_s for transmitting paging information according to the preset paging parameter nB; and then further determine, according to the paging opportunity i_s, for sending the search The subframe number of the subframe in which the message is called.
  • the first base station is configured according to pre-configured paging parameters.
  • the nB calculates the paging opportunity i_S for transmitting the paging information, and determines the specific implementation manner of the subframe number of the subframe used for transmitting the paging information according to the paging opportunity i-S:
  • the first base station calculates a paging opportunity i_s for transmitting paging information according to the following formula (1).
  • I- s floor ( UE — ID IN ) mod N s ( 1 )
  • floor ( * ) indicates rounding, that is, an integer representing the quotient of UE_ID / N; UE_ID indicates the equivalent identifier of the UE in the connected state; N takes T and the paging parameter pre-configured by the first base station
  • the paging parameter nB pre-configured by the first base station may have a value range of ⁇ 4T, 2T, ⁇ , T/2, T/4, T/8, T/16, T/32 ⁇ .
  • the nB may be pre-configured in the target base station by high-level signaling; the value of T may be ⁇ 32, 64, 128, 256 ⁇ , and the unit is a frame.
  • each UE has a specific paging period T s , and the value of T s can be ⁇ 32, 64, 128, 256 ⁇ , and the unit is a frame; at the same time, each base station also covers The range of UE broadcast non-continuous reception (DRX) periods T e , T e may be in the range of ⁇ 32, 64, 128, 256 ⁇ , and the unit is a frame. Therefore, for a certain UE, the actual paging period T can specifically take the minimum value between the broadcast DRX cycle 1 and the specific paging cycle 1 ⁇ .
  • DRX UE broadcast non-continuous reception
  • the broadcast DRX period T e of the first base station is 128 frames
  • the specific paging period T s of the UE in the connected state of the first base station is 64 frames
  • the UE-ID of the UE in the connected state of the first base station may specifically take the international mobile subscriber identity of the UE (International Mobile
  • the first base station acquires the subframe number of the subframe for transmitting the paging information from the stored correspondence between the i-s and the subframe number according to the calculated i-s.
  • the first base station may obtain, from the correspondence between the i_s and the subframe number shown in Table 1 or Table 2, The subframe number of the subframe in which the paging information is transmitted.
  • Table 1 corresponds to the LTE TDD system
  • Table 2 corresponds to the LTE FDD system.
  • Table 1 it can be seen from Table 1 that the subframe used by the first base station to transmit paging information is specifically a subframe. 0 (that is, the subframe number is 0).
  • the first base station may calculate the frame number of the paging frame used to transmit the paging information according to the pre-configured paging parameter nB.
  • each paging frame includes 10 subframes, wherein each paging frame can be transmitted using one of the subframe 0, the subframe 1, the subframe 5, and the subframe 6 Paging information.
  • the first base station calculates the frame number of the paging frame to which the subframe for transmitting the paging information belongs according to the pre-configured paging parameter nB, specifically: the first base station calculates the first base station according to the following formula (2). a frame number SFN of a paging frame to which a subframe for transmitting paging information belongs;
  • the SFN indicates the frame number of the paging frame to which the subframe used by the first base station to transmit the paging information belongs; T indicates the actual paging cycle of the UE in the connected state in the first base station; and the UE_ID indicates the first base station.
  • the equivalent identifier UE_ID is different, so the equivalent identifier UE-ID in formula (3) can be considered as a variable. It can be seen from the above formula (3) that, in order to support paging of all connected UEs in its coverage, the paging frame SFN includes all paging frames in the resource, that is, the first base station calculates The set of paging frames to which the subframe for transmitting paging information belongs is all paging frames.
  • the set of paging frames to which the subframe for transmitting paging information calculated by the first base station belongs is all even frames.
  • the set of paging frames to which the subframe for transmitting paging information calculated by the first base station belongs is a paging frame whose SFN is equal to an integral multiple of all four.
  • the first base station sends the calculated subframe number and the frame number of the paging frame to the second base station, so that the first
  • ABS no blank subframe
  • the impact of the approximate null subframe (ABS) on the paging interference is extremely small, negligible, or the impact on the paging interference is within the allowable range.
  • 3GPP 3rd Generation Partnership Project
  • the second base station after receiving the subframe number sent by the first base station and the frame number of the paging frame, the second base station may be in the paging frame corresponding to the frame number and the subframe number.
  • the subframe is configured to approximate the null subframe to avoid paging interference to the user terminal in the connected state in the first base station.
  • the second base station sends information on the subframe that receives the subframe number sent by the first base station, and avoids paging interference to the user terminal in the connected state in the first base station.
  • the first base station may send the calculated subframe number and the frame number of the paging frame to the second base station through an interface with the second base station, or the first base station may also calculate through other dedicated channels.
  • the subframe number and the frame number of the paging frame are sent to the second base station, which is not limited in the embodiment of the present invention.
  • the interface between the first base station and the second base station includes a wired interface and a wireless interface, which are not limited in the embodiment of the present invention.
  • the first base station may send the calculated subframe number and the frame number of the paging frame to which the subframe belongs to the second base station by using the notification signaling, where the notification signaling adopts a bit mapping manner.
  • the length of the notification information the indication period (in frames) X ( nB / T ) of the notification signaling.
  • the second base station may further send configuration information of the approximate null subframe to the first base station.
  • the second base station may send configuration information of the approximate null subframe to the first base station by using the notification signaling, where the notification signaling may be merged into the notification signaling for protecting the data transmission or the broadcast signal transmission, or Was sent separately.
  • the first base station and the second base station are base stations located in a heterogeneous network, and therefore, the coverage of the first base station and the coverage of the second base station are intersected, and the spectrum resources and the first base station are configured.
  • the spectrum resources configured by the two base stations are completely or partially the same.
  • the first base station may be a macro base station, or may be a low-power base station such as a micro base station, a pico base station, and a relay station, which is not limited in the embodiment of the present invention.
  • the first base station in the foregoing step 201 determines that the user terminal in the connected state is specifically implemented by: the first base station determines that it is in a connected state, and the signal to interference ratio (SIR) A UE that is less than or equal to a preset threshold.
  • SIR signal to interference ratio
  • the preset threshold of the SIR may be preset to -4 dB on the first base station, where the preset threshold of the SIR is -4 dB indicating the maximum interference limit that the first base station can tolerate;
  • the UE with the SIR less than or equal to -4 dB may be further selected from the determined UEs in the connected state, and then the sub-required UE for paging the selected UE is calculated by the foregoing method.
  • the preset threshold value of the SIR may be preset according to the actual scenario in which the first base station is located, and is not limited to -4 dB, for example, may also be -5 dB, -6 dB, etc., in the embodiment of the present invention. Not limited.
  • the second base station when the UE determined by the first base station is in the connected state, and the SIR is less than or equal to the preset threshold, the second base station may be in the connected state in the first base station, and the SIR is less than or equal to the pre-
  • the subframes in the paging frame corresponding to the thresholded UE are configured to be approximately empty subframes, and the subframes in the paging frames corresponding to all the UEs in the connected state in the first base station need not be configured to be approximately null subframes;
  • paging interference of a UE in a connected state and having a SIR less than or equal to a preset threshold may be avoided, and resource waste of the interfering cell is further reduced.
  • the first base station calculates a subframe number of a subframe required for paging the UEs and a frame number of the paging frame to which the subframe belongs, and calculates The outbound subframe number and the frame number of the paging frame are sent to the second base station, so that the second base station can configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be approximately an empty subframe, which can be avoided.
  • the second base station interferes with paging of the user terminal in the connected state in the first base station.
  • the embodiment of the present invention only protects the paging information of the UE in the connected state in the first base station, and does not need to protect the paging information of all the UEs in the first base station; accordingly, the second base station may be in the connected state in the first base station.
  • the subframes in the paging frame corresponding to the UE are configured to be approximately empty subframes, and the subframes in the paging frames corresponding to all the UEs in the first base station need not be configured to be approximately empty subframes; thus, the embodiment of the present invention can avoid Paging interference to UEs in connected state in a heterogeneous network, while reducing resource waste of interfering cells.
  • Embodiment 1
  • FIG. 3 is a paging between a macro base station and a pico base station according to Embodiment 1 Schematic diagram of the interference scene.
  • a macro base station and a pico base station are simultaneously present in the heterogeneous network.
  • the macro base station determines that the user terminal in the connected state is the UE, and the UE is interfered by the paging of the pico base station, that is, the macro base station serves as the first base station, and the pico base station serves as the second base station.
  • the paging opportunity i_s of the macro base station for transmitting paging information is calculated to be 0, and Table 1 is taken as an example to show that the macro base station is used.
  • the subframe in which the paging information is transmitted is a subframe with a subframe number of 0.
  • the macro base station may calculate the subframe 0 for transmitting the paging information through the interface with the pico base station.
  • the subframe number and the frame number of all paging frames to which the subframe 0 belongs are sent to the pico base station.
  • the pico base station After the pico base station receives the subframe number of the subframe 0 sent by the macro base station for transmitting the paging information and the frame number of all the paging frames to which the subframe 0 belongs, the pico base station transmits the subframe number in all the paging frames.
  • a subframe of 0 is configured to approximate an empty subframe. Therefore, paging interference of the pico base station to the UE in the connected state in the macro base station can be avoided.
  • the pico base station may send configuration information of the approximate null subframe to the macro base station.
  • the macro base station may calculate the subframe number of the subframe required for paging the UEs in the connected state and the frame number of the paging frame to which the subframe belongs. Transmitting the calculated subframe number and the frame number of the paging frame to the pico base station, so that the pico base station can configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be an approximately null subframe. Paging interference of the pico base station to the UE in the connected state in the macro base station can be avoided.
  • the embodiment of the present invention only protects the paging information of the UE in the connected state in the macro base station, and does not need to protect the paging information of all the UEs in the macro base station; accordingly, the pico base station may correspond to the UE in the connected state in the macro base station.
  • the subframes in the paging frame are configured to be approximate to the null subframes, and the subframes in the paging frames corresponding to all the UEs in the macro base station need not be configured to be approximately null subframes. Therefore, the embodiment of the present invention can avoid the heterogeneous network.
  • the paging interference of the UE in the connected state reduces the waste of resources of the interfering cell.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 4 is a paging between a macro base station and a pico base station according to Embodiment 2 Schematic diagram of the interference scene.
  • a macro base station and a pico base station are simultaneously present in the heterogeneous network.
  • the user terminals in the connected state of the pico base station are UE1 and UE2, and UE1 and UE2 are interfered by the macro base station, that is, the pico base station is used as the first base station, and the macro base station is used as the second base station.
  • the subframe used by the pico base station to send the paging information to the UE 1 is the subframe 0;
  • the paging opportunity of 2 is 0.
  • the subframe used by the pico base station to send paging information to UE2 is subframe 0.
  • the pico base station After calculating the subframe 0 for transmitting the paging information to the UE1 and the paging frame 12 to which the subframe 0 belongs, the pico base station can calculate the sub-send for transmitting the paging information through the interface with the macro base station.
  • the subframe number of the frame 0 and the frame number of the paging frame 12 to which the subframe 0 belongs are transmitted to the macro base station; likewise, the subframe 0 for transmitting the paging information to the UE2 and the paging frame to which the subframe 0 belongs are calculated.
  • the pico base station can transmit, to the macro base station, the subframe number of the subframe 0 for transmitting the paging information and the frame number of the paging frame 37 to which the subframe 0 belongs by using an interface with the macro base station.
  • the macro base station After receiving the subframe number of the subframe 0 sent by the pico base station for transmitting the paging information and the frame number of the paging frame 12 to which the subframe 0 belongs and the frame number of the paging frame 37, the macro base station will search for the macro base station.
  • the subframe 0 in the call frame 12 and the paging frame 37 is configured to be approximately an empty subframe, so that the macro base station can avoid paging interference to the user terminal in the connected state in the pico base station.
  • the paging information that is, the macro base station is required to configure the subframe to be an approximate null subframe, to avoid paging interference of the macro base station to the UE in the connected state in the pico base station.
  • the pico base station may calculate the subframe number of the subframe required for paging the UEs in the connected state and the frame number of the paging frame to which the subframe belongs. Transmitting the calculated subframe number and the frame number of the paging frame to the macro base station, so that the macro base station can configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be approximately an empty subframe. The paging interference of the macro base station to the UE in the connected state in the pico base station can be avoided.
  • the embodiment of the present invention only protects the paging information of the UE in the connected state in the pico base station, and does not need to protect the paging information of all the UEs in the pico base station; correspondingly, the macro base station may correspond to the UE in the connected state in the pico base station.
  • the subframes in the paging frame are configured to be approximately empty subframes, and the subframes in the paging frames corresponding to all the UEs in the pico base station need not be configured to be approximately empty subframes. Therefore, the embodiment of the present invention can avoid the heterogeneous network.
  • the paging interference of the UE in the connected state reduces the resource waste of the interfering cell.
  • FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure, where the method is applied to a heterogeneous network, and the steps in the foregoing method embodiments may be implemented.
  • the base station includes: a determining unit 501, a calculating unit 502, and a transmitting unit 503.
  • the determining unit 501 is configured to determine a user terminal that is in a connected state; the calculating unit 502 is configured to calculate a subframe number of a subframe used to send the paging information, and a frame number of the paging frame to which the subframe belongs, where The paging information is used by the UE determined by the paging determining unit 501; the sending unit 503 is configured to configure the subframe number calculated by the calculating unit 502 and the frame number of the paging frame to be approximated as an empty subframe, or to make the second The base station stops transmitting information in the subframe corresponding to the subframe number in the paging frame corresponding to the frame number.
  • the determining unit 501 is further configured to determine a UE that is in a connected state and whose SIR is less than or equal to a preset threshold.
  • the sending unit 503 is specifically configured to send, by using the notification signaling, the subframe number calculated by the calculating unit 502 and the frame number of the paging frame to the second base station, where the notification signaling adopts a bit mapping manner.
  • the length of the notification information the indication period X (nB/T) of the notification signaling.
  • the second base station may further send configuration information of the approximate null subframe to the local base station.
  • the second base station may send the configuration of the approximate null subframe to the local station by using the notification signaling, where the notification signaling may be merged into the communication for protecting the data transmission or the broadcast signal transmission. Sent in the signaling, or sent separately.
  • the base station and the second base station provided by the embodiment of the present invention are base stations located in a heterogeneous network. Therefore, the coverage of the base station provided by the embodiment of the present invention is different from the coverage of the second base station, and is provided by the embodiment of the present invention.
  • the spectrum resources configured by the base station are completely or partially the same as the spectrum resources configured by the second base station.
  • FIG. 6 is a schematic structural diagram of another base station according to an embodiment of the present invention, which is applied to a heterogeneous network.
  • the base station shown in FIG. 6 is obtained by refining the base station shown in FIG. 5.
  • the calculating unit 502 can include:
  • a second subunit 5022 configured to acquire, according to the i-s calculated by the first subunit 5021, a subframe number of a subframe used for transmitting paging information from a correspondence between the saved i_s and the subframe number;
  • the above floor (*) represents a rounding operation
  • the UE_ID represents an equivalent identifier of the user terminal
  • N takes the minimum value between the actual paging cycle T of the user terminal and the preset paging parameter nB
  • N s takes the maximum value between 1 and nB/T
  • mod represents the modulo operation
  • the value range of nB is ⁇ 4T, 2T, ⁇ , T/2, T/4, T/8, T/16, T/32 ⁇ .
  • the determining unit 501 calculates the subframe number of the subframe required for paging the UEs and the frame number of the paging frame to which the subframe belongs. And the transmitting unit 503 configures the subframe number calculated by the calculating unit 502 and the subframe number of the paging frame to be approximated as an empty subframe, or stops the subframe number in the paging frame corresponding to the frame number. By transmitting information in the corresponding subframe, paging interference of the second base station to the UE in the connected state in the base station may be avoided.
  • the embodiment of the present invention can only protect the paging information of the UE in the connected state in the base station, and does not need to protect the paging information of all the UEs in the base station; accordingly, the second base station can correspond to the UE in the connected state in the base station.
  • the subframes in the paging frame are configured to be approximately null subframes, and the subframes in the paging frames corresponding to all the UEs in the base station are not configured to be approximately null subframes; thus, the embodiment of the present invention can avoid heterogeneous networks. Paging interference of UEs in connected state, while reducing resource waves of interfering cells Fee.
  • FIG. 7 is a schematic structural diagram of a paging resource coordination system in a heterogeneous network according to an embodiment of the present invention.
  • the system may include: a first base station 701 and a second base station 702.
  • the foregoing first base station 701 may be a macro base station, or may be a low-power base station such as a micro base station, a pico base station, and a relay station, which is not limited in the embodiment of the present invention
  • the second base station 702 may be a macro base station, a micro base station, or a pico
  • a low-power base station such as a base station and a relay station is not limited in the embodiment of the present invention.
  • the first base station 701 is configured to determine a UE in a connected state, and calculate a subframe number of a subframe for transmitting paging information and a frame number of a paging frame to which the subframe belongs, where the foregoing paging
  • the information is used to page the UE in the connected state in the first base station 701; the first base station 701 sends the calculated subframe number and the frame number of the paging frame to the second base station 702.
  • the second base station 702 is configured to receive the subframe number sent by the first base station 701 and the frame number of the paging frame, and configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be an approximate null subframe. Or stopping transmitting the information in the subframe corresponding to the subframe number in the paging frame corresponding to the frame number.
  • the first base station 701 may send the calculated subframe number and the frame number of the paging frame to the second base station 702 through an interface with the second base station 702, or the first base station 701 may also pass other dedicated
  • the channel sends the calculated subframe number and the frame number of the paging frame to the second base station 702, which is not limited in the embodiment of the present invention.
  • the interface between the first base station 701 and the second base station 702 includes a wired interface and a wireless interface, which are not limited in the embodiment of the present invention.
  • the first base station 701 may send the calculated subframe number and the frame number of the paging frame to which the subframe belongs to the second base station 702 by using notification signaling; where the notification signaling uses bit mapping.
  • the length of the notification information the indication period of the notification signaling (in units of frames) X (nB/T).
  • the second base station 702 may further send configuration information of the approximate null subframe to the first base station 701.
  • the second base station 701 may send the configuration information of the approximate null subframe to the first base station 701 by using the notification signaling; wherein the notification signaling may be merged into the notification signaling for protecting the data transmission or the broadcast signal transmission. , or sent separately.
  • the first base station 701 and the second base station 702 are base stations located in a heterogeneous network, and therefore the coverage of the first base station 701 and the coverage of the second base station 702 are intersected, and the first base station 701 is configured.
  • the spectrum resources are completely or partially identical to the spectrum resources configured by the second base station 702.
  • the UE in the connected state determined by the first base station 701 may specifically be a UE that is in a connected state and whose SIR is less than or equal to a preset threshold.
  • the structure of the first base station 701 is the same as that of FIG. 5 or FIG. 6, which is not described in this embodiment.
  • the first base station 701 calculates the subframe number of the subframe required for paging the UEs and the frame number of the paging frame to which the subframe belongs, and The calculated subframe number and the frame number of the paging frame are sent to the second base station 702, so that the second base station 702 can configure the subframe corresponding to the subframe number in the paging frame corresponding to the frame number to be an approximate null subframe. , or stop paging interference of the second base station 702 to the UE in the connected state in the first base station 701.
  • the embodiment of the present invention only protects paging information of the UE in the connected state in the first base station 701, and does not need to protect paging information of all UEs in the first base station 701; accordingly, the second base station 702 can use the first base station 701.
  • the subframes in the paging frame corresponding to the UE in the connected state are configured to be approximately empty subframes, and the subframes in the paging frames corresponding to all the UEs in the first base station 701 need not be configured to be approximately null subframes;
  • the embodiment of the invention can avoid paging interference to the UE in the connected state in the heterogeneous network, and reduce the waste of resources of the interfering cell.
  • the specific manner of implementing the paging resource coordination in the heterogeneous network by using the base station and the system embodiment provided by the present invention is similar to the foregoing method embodiment of the present invention, and details are not described herein again.
  • the foregoing storage medium includes: a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like can store program codes. Medium.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent le domaine technique des communications. Un procédé, une station de base et un système de coordination de ressources de radiomessagerie dans un réseau hétérogène sont présentés, le procédé comprenant : la confirmation par une première station de base d'un terminal d'utilisateur dans un état connecté; le calcul par la première station de base du numéro de sous-trame de la sous-trame utilisée pour envoyer des informations de radiomessagerie, et du numéro de trame de la trame de radiomessagerie à laquelle ladite sous-trame appartient; l'utilisation des informations de radiomessagerie pour appeler par radiomessagerie ledit terminal d'utilisateur dans un état connecté; la transmission, par la première station de base à une seconde station de base, du numéro de sous-trame calculé et du numéro de trame de la trame de radiomessagerie, sur quoi la seconde station de base configure la sous-trame correspondant au numéro de sous-trame dans la trame de radiomessagerie correspondant au numéro de trame de radiomessagerie en tant que sous-trame presque vide, ou, la seconde station de base cesse de transmettre des informations par l'intermédiaire de la sous-trame correspondant au numéro de sous-trame dans la trame de radiomessagerie correspondant au numéro de trame de radiomessagerie. La mise en oeuvre des modes de réalisation de la présente invention permet d'éviter une interférence de radiomessagerie pour des terminaux d'utilisateur dans un état connecté dans des réseaux hétérogènes et de réduire le gaspillage de ressources du fait d'une interférence de cellules.
PCT/CN2012/070179 2010-11-10 2012-01-10 Procédé, station de base et système de coordination de ressources de radiomessagerie dans un réseau hétérogène Ceased WO2012062225A2 (fr)

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EP12719918.0A EP2632217A2 (fr) 2010-11-10 2012-01-10 Procédé, station de base et système de coordination de ressources de radiomessagerie dans un réseau hétérogène
RU2013126523/08A RU2556444C2 (ru) 2010-11-10 2012-01-10 Способ, базовая станция и система для координации ресурса поискового вызова в гетерогенной сети

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CN201010538735.1A CN102469583B (zh) 2010-11-10 2010-11-10 一种异构网络中寻呼资源协调方法及基站、系统

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CN102843768B (zh) * 2011-06-20 2017-02-01 华为技术有限公司 寻呼方法和设备
CN103582146A (zh) * 2012-08-02 2014-02-12 华为技术有限公司 一种用户调度方法、主基站、用户设备及异构网络
CN106572533B (zh) * 2015-10-10 2020-09-11 中兴通讯股份有限公司 寻呼处理方法及装置
WO2017128309A1 (fr) * 2016-01-29 2017-08-03 华为技术有限公司 Procédé de radiomessagerie, dispositif réseau et système
CN108632995B (zh) * 2017-01-24 2022-04-15 中兴通讯股份有限公司 一种寻呼优化的方法和装置
CN109392105A (zh) * 2017-08-07 2019-02-26 华为技术有限公司 一种降低终端设备干扰的方法及基站

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CN101222658B (zh) * 2007-01-10 2011-05-11 中兴通讯股份有限公司 寻呼广播消息的发送方法及插入方法和合并方法
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CN102469583A (zh) 2012-05-23
EP2632217A2 (fr) 2013-08-28
RU2556444C2 (ru) 2015-07-10
CN102469583B (zh) 2014-09-17
RU2013126523A (ru) 2014-12-20
WO2012062225A3 (fr) 2012-07-12

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